The term 'impressionism' comes from a painting by Claude Monet, which he showed in an exhibition with the name Impression, soleil levant Impression, Sunrise. An art critic called Louis Leroy saw the exhibition and wrote a review in which he said that all the paintings were just "impressions".
Debra is more likely than Rachel to be involved in physical activity. Since there are boys in her group, the group would usually be doing physical activity.